Strong statistical relationship in the data record. Labitzke’s [1987] discovery was followed by several papers which expanded on the original result. Strong correlations are seen year-round between the solar cycle and stratospheric geopotential heights and temperatures in both hemispheres, irrespective of the phase of the QBO
https://people.nwra.com/resumes/baldwin/pubs/Baldwin_Dunkerton.pdf
Quote selectie